mirror of
https://git.postgresql.org/git/postgresql.git
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88d7b711a0
< * -Allow limits on per-db/role connections
43d41
< * -Prevent dropping user that still owns objects, or auto-drop the objects
49d46
< * -Add the client IP address and port to pg_stat_activity
< * -Add session start time and last statement time to pg_stat_activity
< * -Add a function that returns the start time of the postmaster
230d224
< o -Allow MIN()/MAX() on arrays
< o -Modify array literal representation to handle array index lower bound
< of other than one
253d244
< * -Add function to return compressed length of TOAST data values
< * -Prevent to_char() on interval from returning meaningless values
<
< For example, to_char('1 month', 'mon') is meaningless. Basically,
< most date-related parameters to to_char() are meaningless for
< intervals because interval is not anchored to a date.
<
< * -Have views on temporary tables exist in the temporary namespace
< * -Allow temporary views on non-temporary tables
329d311
< * -Add BETWEEN SYMMETRIC/ASYMMETRIC
< * -Add E'' escape string marker so eventually ordinary strings can treat
< backslashes literally, for portability
<
< * -Allow additional tables to be specified in DELETE for joins
<
< UPDATE already allows this (UPDATE...FROM) but we need similar
< functionality in DELETE. It's been agreed that the keyword should
< be USING, to avoid anything as confusing as DELETE FROM a FROM b.
<
341d313
< * -Allow REINDEX to rebuild all database indexes
< * -Add an option to automatically use savepoints for each statement in a
< multi-statement transaction.
<
< When enabled, this would allow errors in multi-statement transactions
< to be automatically ignored.
<
426d391
< o -Allow FOR UPDATE queries to do NOWAIT locks
473d437
< o -Allow COPY to understand \x as a hex byte
< o -Allow COPY to optionally include column headings in the first line
< o -Allow COPY FROM ... CSV to interpret newlines and carriage
< returns in data
525d485
< o -Have SHOW ALL show descriptions for server-side variables
< o -Allow PL/PgSQL's RAISE function to take expressions
<
< Currently only constants are supported.
<
< o -Change PL/PgSQL to use palloc() instead of malloc()
545d499
< o -Allow PL/pgSQL EXECUTE query_var INTO record_var;
550d503
< o -Pass arrays natively instead of as text between plperl and postgres
598d550
< o -Add dumping and restoring of LOB comments
638d589
< * -Implement shared row locks and use them in RI triggers
642d592
< * -Allow triggers to be disabled
< * -Add two-phase commit
<
<
< * -Prevent inherited tables from expanding temporary subtables of other
< sessions
< * -Use indexes for MIN() and MAX()
<
< MIN/MAX queries can already be rewritten as SELECT col FROM tab ORDER
< BY col {DESC} LIMIT 1. Completing this item involves doing this
< transformation automatically.
<
< * -Use index to restrict rows returned by multi-key index when used with
< non-consecutive keys to reduce heap accesses
<
< For an index on col1,col2,col3, and a WHERE clause of col1 = 5 and
< col3 = 9, spin though the index checking for col1 and col3 matches,
< rather than just col1; also called skip-scanning.
<
< * -Fetch heap pages matching index entries in sequential order
<
< Rather than randomly accessing heap pages based on index entries, mark
< heap pages needing access in a bitmap and do the lookups in sequential
< order. Another method would be to sort heap ctids matching the index
< before accessing the heap rows.
<
< * -Allow non-bitmap indexes to be combined by creating bitmaps in memory
<
< This feature allows separate indexes to be ANDed or ORed together. This
< is particularly useful for data warehousing applications that need to
< query the database in an many permutations. This feature scans an index
< and creates an in-memory bitmap, and allows that bitmap to be combined
< with other bitmap created in a similar way. The bitmap can either index
< all TIDs, or be lossy, meaning it records just page numbers and each
< page tuple has to be checked for validity in a separate pass.
<
< * -Fix incorrect rtree results due to wrong assumptions about "over"
< operator semantics
782d694
< o -Add concurrency to GIST
813d724
< * -Allow multiple blocks to be written to WAL with one write()
< * -Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
< for WAL writes
<
< O_DIRECT doesn't have the same media write guarantees as fsync, so it
< is in addition to the fsync method, not in place of it.
<
< * -Cache last known per-tuple offsets to speed long tuple access
< * -Allow the size of the buffer cache used by temporary objects to be
< specified as a GUC variable
<
< Larger local buffer cache sizes requires more efficient handling of
< local cache lookups.
<
< * -Improve the background writer
<
< Allow the background writer to more efficiently write dirty buffers
< from the end of the LRU cache and use a clock sweep algorithm to
< write other dirty buffers to reduced checkpoint I/O
<
897d788
< * -Add a warning when the free space map is too small
917d807
< o -Move into the backend code
< * -Make locking of shared data structures more fine-grained
<
< This requires that more locks be acquired but this would reduce lock
< contention, improving concurrency.
<
< * -Improve SMP performance on i386 machines
<
< i386-based SMP machines can generate excessive context switching
< caused by lock failure in high concurrency situations. This may be
< caused by CPU cache line invalidation inefficiencies.
<
979d857
< o -Add ability to turn off full page writes
< * -Eliminate WAL logging for CREATE TABLE AS when not doing WAL archiving
< * -Change WAL to use 32-bit CRC, for performance reasons
<
< * -Use CHECK constraints to influence optimizer decisions
<
< CHECK constraints contain information about the distribution of values
< within the table. This is also useful for implementing subtables where
< a tables content is distributed across several subtables.
<
1045d913
< * -ANALYZE should record a pg_statistic entry for an all-NULL column
1099d966
< * -Remove kerberos4 from source tree
1103d969
< * -Make src/port/snprintf.c thread-safe
1118d983
< * -Add C code on Unix to copy directories for use in creating new databases
1133d997
< o -Improve dlerror() reporting string
|
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|---|---|---|
| .. | ||
| src | ||
| TODO.detail | ||
| bug.template | ||
| FAQ | ||
| FAQ_AIX | ||
| FAQ_brazilian | ||
| FAQ_chinese | ||
| FAQ_CYGWIN | ||
| FAQ_czech | ||
| FAQ_DEV | ||
| FAQ_farsi | ||
| FAQ_french | ||
| FAQ_german | ||
| FAQ_HPUX | ||
| FAQ_hungarian | ||
| FAQ_IRIX | ||
| FAQ_japanese | ||
| FAQ_MINGW | ||
| FAQ_polish | ||
| FAQ_QNX4 | ||
| FAQ_russian | ||
| FAQ_SCO | ||
| FAQ_Solaris | ||
| FAQ_turkish | ||
| KNOWN_BUGS | ||
| Makefile | ||
| MISSING_FEATURES | ||
| README.mb.big5 | ||
| README.mb.jp | ||
| TODO | ||
PostgreSQL 7.3 multi-byte (MB) support README 2002/10/21 $B:n@.(B $B@P0fC#IW(B ishii@postgresql.org $B"#$O$8$a$K(B PostgreSQL $B$K$*$1$k%^%k%A%P%$%H%5%]!<%H$O0J2<$N$h$&$JFCD'$r;}$C$F$$$^$9!%(B 1. $B%^%k%A%P%$%HJ8;z$H$7$F!$F|K\8l!$Cf9q8l$J$I$N3F9q$N(B EUC$B!$(BUnicode$B!$(B mule internal code, ISO-8859-* $B$,%G!<%?%Y!<%9:n@.;~$KA*Br2DG=!%(B $B%G!<%?%Y!<%9$K$O$3$N%(%s%3!<%G%#%s%0$N$^$^3JG<$5$l$^$9!%(B 2. $B%F!<%V%kL>$K%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B 3. $B%+%i%`L>$K%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B 4. $B%G!<%?$=$N$b$N$K$b%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B 5. $B%^%k%A%P%$%HJ8;z$N@55,I=8=8!:w$,;HMQ2DG=(B 6. $B%^%k%A%P%$%HJ8;z$N(B LIKE $B8!:w$,;HMQ2DG=(B 7. character_length(), position(), substring() $B$J$I$NJ8;zNs4X?t$G(B $B$N%^%k%A%P%$%H%5%]!<%H(B 8. $B%U%m%s%H%(%s%IB&$N%(%s%3!<%G%#%s%0$,%P%C%/%(%s%IB&$H0[$k>l9g$K!$(B $B<+F0E*$K%(%s%3!<%G%#%s%0JQ49$r9T$J$$$^$9!%(B 9. $B%f!<%6Dj5A$N%(%s%3!<%G%#%s%0JQ49$r:n@.2DG=!%(B $B%^%k%A%P%$%H%5%]!<%H$,07$&$3$H$N$G$-$k%(%s%3!<%G%#%s%0$O0J2<$K$J$j$^(B $B$9!%(B SQL_ASCII ASCII EUC_JP $BF|K\8l(B EUC EUC_CN GB $B$r%Y!<%9$K$7$?CfJ8(BEUC$B!%(Bcode set 2 $B$O(B SS2+2$B%P%$%H%3!<%I(B = 3$B%P%$%HI=8=$G$9!%(B EUC_KR $B4Z9q8l(B EUC$B!%(B JOHAB $B%O%s%0%k%Y!<%9$N4Z9q8l(BEUC. 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$B$J$*!$(B7.2$B$G$O!$(B7.1$B$^$G$H0[$J$j!$(BCHAR(n)$B$K3JG<$G$-$J$$(B n $BJ8;z$h$jBg$-(B $B$$J8;zNs$O(B n $BJ8;z$G@Z$j<N$F$i$l$k$N$G$O$J$/!$%(%i!<$K$J$k$3$H$K$4Cm(B $B0U2<$5$$!%$3$l$O!$%^%k%A%P%$%HBP1~$NM-L5$K4X$o$i$:!$J8;zNs$N07$$$,(B SQL$BI8=`$K1h$&$h$&$KJQ$C$?$+$i$G$9!%(B $B"#%U%m%s%H%(%s%I$H%P%C%/%(%s%I$N<+F0%(%s%3!<%G%#%s%0JQ49$K$D$$$F(B $B%P%C%/%(%s%I(B($B%G!<%?%Y!<%9(B)$B$H(B psql $B$J$I$N%U%m%s%H%(%s%I$N%(%s%3!<%G%#(B $B%s%0$O0lCW$7$F$$$k$N$,86B'$G$9$,!$$$$/$D$+$N%(%s%3!<%G%#%s%0$K$D$$$F(B $B$O%P%C%/%(%s%I$H%U%m%s%H%(%s%I$N4V$G0[$J$k$b$N$r;HMQ$9$k$3$H$,$G$-$^(B $B$9!%$3$N>l9g!$<+F0E*$K%P%C%/%(%s%I$G%(%s%3!<%G%#%s%0JQ49$,9T$o$l$^$9!%(B $B%P%C%/%(%s%I$N%(%s%3!<%G%#%s%0(B $B5vMF$5$l$k%U%m%s%H%(%s%I$N(B $B%(%s%3!<%G%#%s%0(B ---------------------------------------------------------------- EUC_JP EUC_JP, SJIS, UNICODE EUC_TW EUC_TW, BIG5, UNICODE EUC_CN EUC_CN, UNICODE EUC_KR EUC_KR, UNICODE JOHAB JOHAB, UNICODE LATIN1,3,4 LATIN1,3,4, UNICODE LATIN2 LATIN2, WIN1250, UNICODE LATIN5 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*encoding) $B$3$N4X?t$r;H$($P!$%3%M%/%7%g%sKh$K%(%s%3!<%G%#%s%0$r@ZBX$($k$3$H$,$G(B $B$-$^$9!%8=:_$N%(%s%3!<%G%#%s%0$NLd$$9g$o$;$O(B int PQclientEncoding(const PGconn *conn) $B$G$9!%(B o postgresql.conf $B$G@_Dj$9$kJ}K!(B $B%U%m%s%H%(%s%I$N%G%U%)%k%H%(%s%3!<%G%#%s%0$r;XDj$9$k$K$O!$(B postgresql.conf $B$N(B client_encoding $B$r;XDj$7$^$9!%;XDjNc(B: client_encoding = SJIS o $B4D6-JQ?t(B PGCLIENTENCODING $B$r;H$&J}K!(B (1) postmaster $B5/F0;~$K4D6-JQ?t$r@_Dj$9$kJ}K!(B $B4D6-JQ?t(B PGCLIENTENCODING $B$r@_Dj$9$k$3$H$K$h$j!$(B postgresql.conf $B$G(B $B%(%s%3!<%G%#%s%0$r;XDj$9$k$N$HF1$88z2L$,F@$i$l$^$9!%$?$@$7!$$3$l$ONr(B $B;KE*7P0^$+$i;D$5$l$F$$$k5!G=$G!$:#8e$O$3$N5!G=$rMxMQ$7$J$$$3$H$r$*$9(B $B$9$a$7$^$9!%@_DjNc(B: export PGCLIENTENCODING=SJIS postmaster -S (2) $B%/%i%$%"%s%H!$%U%m%s%H%(%s%IKh$K%(%s%3!<%G%#%s%0$r@_Dj$7$?$$>l9g(B $B$=$N%U%m%s%H%(%s%I(B($B$?$H$($P(B psql)$B$r5/F0$9$kA0$K4D6-JQ?t(B PGCLIENTENCODING $B$r@_Dj$7$^$9!%(B o set client_encoding $B%3%^%s%I$r;H$&J}K!(B SET CLIENT_ENCODING SQL$B%3%^%s%I$r;H$C$FF0E*$K%U%m%s%H%(%s%I$N%(%s%3!<(B $B%G%#%s%0$rJQ99$G$-$^$9!%Nc(B: SET CLIENT_ENCODING TO SJIS; $B"#8=:_@_Dj$5$l$F$$$k%U%m%s%H%(%s%IB&$N%(%s%3!<%G%#%s%0$rD4$Y$k(B $B8=:_@_Dj$5$l$F$$$k%U%m%s%H%(%s%IB&$N%(%s%3!<%G%#%s%0$O(B show client_encoding; $B$G;2>H$G$-$^$9(B($B>.J8;z$GI=<($5$l$^$9(B)$B!%(B $B"#%G%U%)%k%H$N%(%s%3!<%G%#%s%0$X$NI|5"(B SQL$B%3%^%s%I(B: RESET CLIENT_ENCODING; $B$O!$%G%U%)%k%H$N%U%m%s%H%(%s%I%(%s%3!<%G%#%s%0@_Dj$KI|5"$5$;$^$9!%(B postmaster$B$rN)$A>e$2$k$H$-$K(B postgresql.conf $B$N(B client_encoding $B$d4D(B $B6-JQ?t(B PGCLIENTENCODING $B$,@_Dj$5$l$F$$$k$H$=$N%(%s%3!<%G%#%s%0$K!$$=(B $B$&$G$J$1$l$P%G!<%?%Y!<%9$N%(%s%3!<%G%#%s%0$HF1$8$K$J$j$^$9!%(B $B"#L@<(E*$J%(%s%3!<%G%#%s%0JQ49(B 7.2$B$G$O!$(Bconvert$B$H$$$&4X?t$r;H$$!$L@<(E*$J%(%s%3!<%G%#%s%0JQ49$,$G$-(B $B$^$9!%(B convert(string text, [src_encoding name,] dest_encoding name) $B$3$3$G(Bsrc_encoding$B$O(Btext$B$N%(%s%3!<%G%#%s%0L>$G$9!%>JN,$9$k$H!$%G!<%?(B $B%Y!<%9%(%s%3!<%G%#%s%0L>$HF1$8$G$"$k$H8+$J$5$l$^$9!%(Bdest_encoding$B$O!$(B $BJQ498e$N%(%s%3!<%G%#%s%0L>$G$9!%(B $BNc$r<($7$^$9!%(B SELECT convert(text, EUC_JP) FROM unicode_tbl; $B$O!$(BUnicode$B$N%F!<%V%k(Bunicode_tbl$B$N(Btext$BNs$r(BEUC_JP$B$KJQ49$7$FJV$7$^$9!%(B 7.3$B$G$O$5$i$K(BSQL$BI8=`$N(BCONVERT$B4X?t$,;H$($^$9!%(BSQL$BI8=`$N(BCONVERT$B$O(B PostgreSQL$B$N(BCONVERT$B$H5!G=$O$[$H$s$IF1$8$G$9$,!$8F$S=P$77A<0$,0[$j$^(B $B$9!%(B SELECT convert(text using euc_jp_to_utf8) FROM unicode_tbl; "using" $B$N8e$N0z?t$O!V%3%s%P!<%8%g%sL>!W$G$9!%$3$NNc$G$O!$(BEUC_JP $B$+(B $B$i(B UTF-8 $B$KJQ49$9$k%3%s%P!<%8%g%s$r;XDj$7$F$$$^$9!%Dj5A:Q$N%3%s%P!<(B $B%8%g%s$K$D$$$F$O!$%f!<%6!<%:%,%$%I$N(B "String Functions and Operators" $B$NI=(B"Built-in Conversions" $B$r8+$F$/$@$5$$!%(B $B"#%(%s%3!<%G%#%s%0JQ49ITG=$N>l9g$N=hM}(B $B%P%C%/%(%s%IB&$N%(%s%3!<%G%#%s%0$H%U%m%s%H%(%s%IB&$N%(%s%3!<%G%#%s%0(B $B$,$$$D$bAj8_JQ49$G$-$k$H$O8B$j$^$;$s!%6KC<$JOC!$%P%C%/%(%s%IB&$,(B EUC_JP $B$J$N$K!$%U%m%s%H%(%s%IB&$,(B EUC_KR $B$@$C$?$i$I$&$J$k$G$7$g$&!%(B $B$3$N>l9g(B PostgreSQL $B$OJQ49$G$-$J$$%3!<%I$r(B 16$B?JI=8=$KJQ49$7$^$9!%(B $B$?$H$($P!$(B"(bdae)" $B$N$h$&$K!%$J$*!$$3$N(B 16$B?JI=8=$O(B mule internal code $B$N%3!<%I$G$"$k$3$H$KCm0U$7$F2<$5$$!%$3$l$O!$D>@\%U%m%s(B $B%H%(%s%I(B <--> $B%P%C%/%(%s%I$N%(%s%3!<%G%#%s%0$rJQ49$9$k$N$G$O$J$/!$0l(B $BEYFbItI=8=$G$"$k(B mule internal code $B$r7PM3$7$F$$$k$?$a$G$9!%(B $B$J$*!$(BUnicode$B$H$=$l0J30$N%(%s%3!<%G%#%s%0$NJQ49$@$1$ONc30$G!$(BNOTICE $B%a%C%;!<%8$,I=<($5$l!$JQ49ITG=$NJ8;z$OL5;k$5$l$^$9!%(B $B"#%G%U%)%k%H%3%s%P!<%8%g%s(B $B%G%U%)%k%H%3%s%P!<%8%g%s$O!$%P%C%/%(%s%I$H%U%m%s%H%(%s%I$H$N4V$N%(%s(B $B%3!<%G%#%s%0$N<+F0JQ49$K;H$o$l$kFCJL$J%3%s%P!<%8%g%s$G$9!%%G%U%)%k%H(B $B%3%s%P!<%8%g%s$O3F!9$N(B{$B%9%-!<%^!$%=!<%9%(%s%3!<%G%#%s%0!$%G%9%F%#%M!<(B $B%7%g%s%(%s%3!<%G%#%s%0(B}$B$NAH$_9g$o$;$K$*$$$F!$$?$@0l8D$@$1B8:_$7$^$9!%(B $B>e5-$G@bL@$7$?AH$_9~$_:Q$N%3%s%P!<%8%g%s$O!$(Bpg_catalog$B%9%-!<%^$K$*$$(B 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8859-10.TXT ISO 8859-13 8859-13.TXT ISO 8859-14 8859-14.TXT ISO 8859-15 8859-15.TXT ISO 8859-16 8859-16.TXT EUC_JP JIS0201.TXT, JIS0208.TXT, JIS0212.TXT, CP932.TXT, sjis.map SJIS CP932.TXT EUC_CN GB2312.TXT GBK CP936.TXT EUC_KR KSX1001.TXT UHC CP949.TXT JOHAB JOHAB.TXT EUC_TW CNS11643.TXT Big5 BIG5.TXT WIN1256 CP1256.TXT TCVN CP1258.TXT WIN874 CP874.TXT ============================================================ $B<U<-!'(B o $BFA2H(B@$B;06(1?M"%5!<%S%9$5$s$+$i!$(BCP932.TXT$B$h$j@8@.$7$?(BSJIS$BMQ$NJQ49%F!<(B $B%V%k$rDs6!$7$F$$$?$@$-$^$7$?!%$3$l$K$h$j!$(BIBM $B3HD%J8;zNN0h(B (SJIS 115$B!A(B120 $B6h(B), NEC $BA*Dj(B IBM $B3HD%J8;zNN0h(B (SJIS 89$B!A(B92 $B6h(B)$B$KBP1~$9$k(B $B$3$H$,$G$-$k$h$&$K$J$j$^$7$?!%(B $B;29M(B1$B!'(B Pavel Behal$B;a$K$h$jDs6!$5$l$?(BWIN1250$B%5%]!<%H$G$9$,!$(BWindows$B4D6-$G$N(B $BMxMQ$N;EJ}$K$D$$$F;29M$K$J$k%I%-%e%a%s%H$,IUB0$7$F$$$k$N$G!$$3$3$KE:(B $BIU$7$F$*$-$^$9!%(B ------------------------------------------------------------------- Version: 0.91 for PgSQL 6.5 Author: Pavel Behal Revised by: Tatsuo Ishii Email: behal@opf.slu.cz Licence: The Same as PostgreSQL Sorry for my Eglish and C code, I'm not native :-) !!!!!!!!!!!!!!!!!!!!!!!!! NO WARRANTY !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Instalation: ------------ 1) Change three affected files in source directories (I don't have time to create proper patch diffs, I don't know how) [PostgreSQL 6.5.1$B$G$O$3$N%9%F%C%W$OI,MW$"$j$^$;$s!%(B-- $B@P0f(B] 2) Compile with enabled locale and multibyte set to LATIN2 3) Setup properly your instalation, do not forget to create locale variables in your profile (environment). Ex. (may not be exactly true): LC_ALL=cs_CZ.ISO8859-2 LC_COLLATE=cs_CZ.ISO8859-2 LC_CTYPE=cs_CZ.ISO8859-2 LC_MONETARY=cs_CZ.ISO8859-2 LC_NUMERIC=cs_CZ.ISO8859-2 LC_TIME=cs_CZ.ISO8859-2 4) You have to start the postmaster with locales set! 5) Try it with Czech language, it have to sort 5) Install ODBC driver for PgSQL into your M$ Windows 6) Setup properly your data source. Include this line in your ODBC configuration dialog in field "Connect Settings:" : SET CLIENT_ENCODING = 'WIN1250'; 7) Now try it again, but in Windows with ODBC. Description: ------------ - Depends on proper system locales, tested with RH6.0 and Slackware 3.6, with cs_CZ.iso8859-2 loacle - Never try to set-up server multibyte database encoding to WIN1250, always use LATIN2 instead. There is not WIN1250 locale in Unix - WIN1250 encoding is useable only for M$W ODBC clients. The characters are on thy fly re-coded, to be displayed and stored back properly Important: ---------- - it reorders your sort order depending on your LC_... setting, so don't be confused with regression tests, they don't use locale - "ch" is corectly sorted only in some newer locales (Ex. RH6.0) - you have to insert money as '162,50' (with comma in aphostrophes!) - not tested properly ------------------------------------------------------------------- $B;29M(B2$B!'(BSJIS$B%f!<%6Dj5AJ8;z(B (UDC) $B$r$I$&07$&$+$H8@$&$3$H$K$D$$$FCf>r$5$s(B (nak@email.com)$B$+$i$$$?$@$$$?LdBjDs5/$H2r@b$G$9!%(B -------------------------- $B0zMQ3+;O(B ---------------------------------- --- 1. 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